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  1. Java Driver
  2. JAVA-4165

`ChangeStreamPublisher` may lose change events when retrying `getMore`

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: 3.11.0
    • Fix Version/s: 4.3.0
    • Component/s: Change Streams
    • Labels:
      None
    • Backwards Compatibility:
      Fully Compatible
    • Documentation Changes:
      Not Needed

      Description

      This bug description is a result of investigating JAVA-4155. The code

      cursor.next(callback);
      		 
      cachePostBatchResumeToken(cursor);


      cursor.tryNext(callback);
      		 
      cachePostBatchResumeToken(cursor);

      in AsyncChangeStreamBatchCursor.java results in having a race condition: resumeToken may not yet be known when retrying the next/tryNext operation.

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          Task - A task that needs to be done. JAVA-4166 Backport JAVA-4165 (`ChangeStreamPublisher` may lose change events when retrying `getMore`) to 4.2.x

          • Major - P3 - Major loss of function.
          • Closed
          split from

          Task - A task that needs to be done. JAVA-4155 Investigate intermittent failures of reactive `change-streams-resume-whitelist.json:change stream resumes after CursorNotFound`

          • Unknown - Priority not determined yet.
          • Closed
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              Assignee:
              valentin.kovalenko Valentin Kavalenka
              Reporter:
              valentin.kovalenko Valentin Kavalenka
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                Updated:
                Resolved: